Warner Bros has released the final batch of Watchmen production photos, including a few comic to film comparison shots like the one above of Veidt’s Antarctic retreat. More after the jump.

A complex, multi-layered mystery adventure, “Watchmen” is set in an alternate 1985 America in which costumed superheroes are part of the fabric of everyday society, and the Doomsday Clock–which charts the USA’s tension with the Soviet Union–moves closer to midnight.

When one of his former colleagues is murdered, the outlawed but no less determined masked vigilante Rorschach sets out to uncover a plot to kill and discredit all past and present superheroes. As he reconnects with his former crime-fighting legion–a disbanded group of retired superheroes, only one of whom has true powers–Rorschach glimpses a wide-ranging and disturbing conspiracy with links to their shared past and catastrophic consequences for the future.

Their mission is to watch over humanity…but who is watching the Watchmen?

“Watchmen” is directed by Zack Snyder (”300″) and produced by Lawrence Gordon, Lloyd Levin and Deborah Snyder. The screenplay is by David Hayter and Alex Tse, based upon the graphic novel co-created and illustrated by Dave Gibbons and published by DC Comics. Herbert W. Gains and Thomas Tull are the executive producers, with Wesley Coller serving as co-producer.

Playing the film’s core group of “Masks,” the adventurers at the center of the story, are Malin Akerman (”27 Dresses”) as Laurie Jupiter, aka Silk Spectre II; Billy Crudup (”The Good Shepherd”) as Jon Osterman, aka Dr. Manhattan; Matthew Goode (”Match Point”) as Adrian Veidt, aka Ozymandias; Carla Gugino (”Night at the Museum”) as Sally Jupiter, aka Silk Spectre; Oscar® nominee Jackie Earle Haley (”Little Children”) as Walter Kovacs, aka Rorschach; Jeffrey Dean Morgan (TV’s “Grey’s Anatomy”) as Edward Blake, aka The Comedian; and Patrick Wilson (”Little Children”) as Dan Dreiberg, aka Nite Owl II.